Groups > linux.kernel > #1361937

Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource

From	Christoph Hellwig <hch@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource
Date	2016-03-21 16:30 +0100
Message-ID	<rf9Wj-7Az-25@gated-at.bofh.it> (permalink)
References	<rafSF-34S-3@gated-at.bofh.it> <rbuPE-6r7-19@gated-at.bofh.it> <rcSwx-7WK-1@gated-at.bofh.it> <rdJhy-1oX-53@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Thu, Mar 17, 2016 at 01:33:51PM +0200, Laurent Pinchart wrote:
> The good news is that, given that no code uses this new API at the moment, 
> there isn't much to audit. The patch series implements the resource mapping 
> for arch/arm only, and makes use of it in the rcar-dmac driver only. Would you 
> like anything audited else than the arch/arm dma mapping implementation, the 
> rcar-dmac driver and the code that then deals with the dma addresses (I'm 
> thinking about the IOMMU subsystem and the ipmmu-vmsa driver in particular) ?

Yes, it would be good to do an audit of all the ARM dma_ops as well
as generic code like drivers/base/dma-*.c, lib/dma-debug.c and
include/linux/dma-*.h

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2016-03-17 17:50 +0100
  Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Christoph Hellwig <hch@infradead.org> - 2016-03-21 16:30 +0100

csiph-web